#include "fs.h"

fs_node_t *fs_root = 0;

unsigned int read_fs(fs_node_t *node, unsigned int offset, unsigned int size, unsigned char *buffer)
{
	if(node->read != 0)
		return node->read(node, offset, size, buffer);
	else
		return 0;
}

unsigned int write_fs(fs_node_t *node, unsigned int offset, unsigned int size, unsigned char *buffer)
{
	if(node->write != 0)
		return node->write(node, offset, size, buffer);
	else
		return 0;
}

void open_fs(fs_node_t *node, unsigned char read, unsigned char write)
{
	if(node->open != 0)
		node->open(node, read, write);
	else
		return;
}

void close_fs(fs_node_t *node)
{
	if(node->close != 0)
		node->close(node);
	else
		return;
}

struct dirent *readdir_fs(fs_node_t *node, unsigned int index)
{
	if((node->flags & 0x7) == FS_DIRECTORY && node->readdir != 0)
		return node->readdir(node, index);
	else
		return 0;
}

fs_node_t *finddir_fs(fs_node_t *node, char* name)
{
	if(((node->flags & 0x7) == FS_DIRECTORY) && node->finddir != 0)
		return node->finddir(node, name);
	else
		return 0;
}

